# -*- makefile -*-
# rules to patch the unpacked files in the source directory
# ---------------------------------------------------------------------------
# various rules to unpack addons and (un)apply patches.
# 	- patch / apply-patches
#	- unpatch / reverse-patches

.NOTPARALLEL:

patchdir	?= debian/patches
series_file	?= $(patchdir)/series

# which patches should be applied?

debian_patches = \
	svn-updates \
	libiberty-updates \
	$(if $(with_linaro_branch),gcc-linaro-revert-r247639) \
	$(if $(with_linaro_branch),gcc-linaro-revert-r246734) \
	$(if $(with_linaro_branch),gcc-linaro) \
	$(if $(with_linaro_branch),gcc-linaro-no-macros) \

#	svn-updates \

ifeq ($(with_java),yes)
#  debian_patches += \
#	svn-class-updates
endif

ifneq ($(GFDL_INVARIANT_FREE),yes)
  debian_patches += \
	svn-doc-updates \
	$(if $(with_linaro_branch),gcc-linaro-doc) \
	rename-info-files \
	gcc-SOURCE_DATE_EPOCH-doc \
	gcc-SOURCE_DATE_EPOCH-2-doc \
	$(if $(with_linaro_branch),,vulcan-cpu-doc) \
	gcc-fuse-ld-lld-doc \

#	svn-doc-updates \
#	$(if $(with_linaro_branch),,svn-doc-updates) \

else
endif
debian_patches += \
	gcc-gfdl-build

#	boehm-gc-nocheck: seems to work on the buildds \

debian_patches += \
	gcc-textdomain \
	gcc-driver-extra-langs$(if $(with_linaro_branch),-linaro)

ifneq (,$(filter $(distrelease),etch lenny squeeze wheezy dapper hardy intrepid jaunty karmic lucid))
  debian_patches += gcc-hash-style-both
else
  debian_patches += gcc-hash-style-gnu
endif

debian_patches += \
	libstdc++-pic \
	libstdc++-doclink \
	libstdc++-man-3cxx \
	libstdc++-test-installed \
	libjava-stacktrace \
	libjava-jnipath \
	libjava-sjlj \
	libjava-disable-plugin \
	alpha-no-ev4-directive \
	boehm-gc-getnprocs \
	note-gnu-stack \
	libgomp-omp_h-multilib \
	gccgo-version \
	pr47818 \
	gcc-base-version \
	libgo-testsuite \
	gcc-target-include-asm \
	libgo-revert-timeout-exp \
	libgo-setcontext-config \
	gcc-auto-build \
	kfreebsd-unwind \
	libitm-no-fortify-source \
	sparc64-biarch-long-double-128 \
	gcc-ia64-bootstrap-ignore \
	gotools-configury \
	pr66368 \
	pr67590 \
	ada-gnattools-ldflags \
	libjit-ldflags \
	gcc-SOURCE_DATE_EPOCH \
	gcc-SOURCE_DATE_EPOCH-2 \
	cmd-go-combine-gccgo-s-ld-and-ldShared-methods \
	libjava-mips64el \
	gccgo-issue16780 \
	$(if $(with_linaro_branch),,vulcan-cpu) \
	$(if $(with_linaro_branch),,vulcan-costs) \
	libffi-pax \
	libffi-race-condition \
	libgo-add-getrandom-mips-sparc \
	libgo-fix-getrandom-clone-sparc64 \
	libgo-rawClone-no_split_stack \
	libgo-rawClone-no-pt_regs \
	libgo-elf-relocations-sparc64 \
	libobjc-system-gc \
	compress-debug-check \
	pr77267 \
	pr78774 \
	CVE-2016-9840 \
	CVE-2016-9841 \
	CVE-2016-9842 \
	CVE-2016-9843 \
	libcc1-compiler-name \
	mips-pr78176-add-mlxc1-sxc1 \
	mips-loongson3a-use-fused-madd.d \
	mips-madd4 \
	gcc-fuse-ld-lld \
	pr72813 \
	pr70909 \
	pr77857 \
	pr80533 \
	pr60818 \

ifeq ($(libstdcxx_abi),new)
  debian_patches += libstdc++-functexcept
endif

#	$(if $(filter yes, $(DEB_CROSS)),,gcc-print-file-name) \
#	libstdc++-nothumb-check \
# TODO: update ...
#	libjava-rpath \

hardening_patches =
ifeq ($(with_ssp)-$(with_ssp_default),yes-yes)
  hardening_patches += gcc-default-ssp
  hardening_patches += gcc-default-format-security
  ifeq (,$(filter $(distrelease),dapper hardy lucid maverick natty oneiric precise quantal raring saucy trusty))
    hardening_patches += gcc-default-ssp-strong
  endif
endif
ifneq (,$(filter $(derivative),Ubuntu))
  ifneq (,$(findstring gcc-6, $(PKGSOURCE)))
    hardening_patches += \
	gcc-default-fortify-source \
	gcc-default-relro \
	testsuite-hardening-format \
	testsuite-hardening-printf-types \
	testsuite-hardening-updates \
	testsuite-glibc-warnings
    ifeq ($(with_pie),yes)
      hardening_patches += \
	bind_now_when_pie
    else
      hardening_patches += \
	ignore-pie-specs-when-not-enabled
    endif
  endif
else ifneq (,$(filter $(derivative),Debian))
  ifneq (,$(findstring gcc-6, $(PKGSOURCE)))
#    ifneq ($(with_pie),yes)
#      hardening_patches += \
#	ignore-pie-specs-when-not-enabled
#    endif
  endif
endif

# FIXME 4.5: Drop and adjust symbols files
ifneq (,$(findstring 4.4, $(PKGSOURCE)))
  debian_patches += pr39491
endif

debian_patches += ada-arm
debian_patches += ada-kfreebsd
debian_patches += ada-revert-pr63225

ifeq (,$(DEB_STAGE))
# there should be no harm to always apply these, except for new GCC versions
#ifeq ($(with_ada),yes)
  debian_patches += \
	ada-driver-check \
	ada-default-project-path \
	ada-library-project-files-soname

	# FIXME: needs update
	#ada-symbolic-tracebacks \

  ifeq ($(biarch64),yes)
    debian_patches += \
	ada-nobiarch-check
  endif

  #ifeq ($(with_libgnat),yes)
    debian_patches += \
	ada-link-lib \
	ada-libgnatvsn \
	ada-libgnatprj \
	ada-gnattools-cross \
	ada-acats \
	libgnatprj-cross-hack
    ifneq (,$(filter $(distrelease),lucid precise))
      debian_patches += \
	libgnatprj-link
    endif
  #endif
  #ifeq ($(with_gnatsjlj),yes)
    debian_patches += \
	ada-sjlj
  #endif

  debian_patches += ada-link-shlib
  debian_patches += ada-gcc-name
#endif
endif # DEB_STAGE


ifeq ($(with_d),yes)
  debian_patches += \
	gdc-6 \
	gdc-updates \
	libphobos-zlib \
	gdc-versym-cpu \
	gdc-versym-os \
	gdc-frontend-posix \
	gdc-base-version \
	gdc-profiledbuild \
#	gdc-multiarch
  ifneq ($(GFDL_INVARIANT_FREE),yes)
    debian_patches += gdc-6-doc
  else
    debian_patches += gdc-texinfo
  endif
  ifeq ($(with_libphobos),yes)
    debian_patches += gdc-libphobos-build
  else
    debian_patches += gdc-driver-nophobos
  endif
  ifeq (,$(filter $(DEB_TARGET_ARCH),amd64 i386))
    debian_patches += disable-gdc-tests
  endif
else
  debian_patches += gcc-d-lang
endif

ifeq ($(DEB_TARGET_ARCH),alpha)
  debian_patches += alpha-ieee
  ifneq ($(GFDL_INVARIANT_FREE),yes)
    debian_patches += alpha-ieee-doc
  endif
endif

ifeq (,$(filter $(derivative),Ubuntu))
  debian_patches += pr64735-headers
  ifeq ($(DEB_TARGET_ARCH),armel)
    debian_patches += pr64735
  endif
endif

ifneq (,$(findstring $(DEB_TARGET_ARCH),arm armel armhf))
  debian_patches += libjava-armel-unwind
endif

ifeq ($(DEB_TARGET_ARCH),armhf)
 debian_patches += gcj-arm-mode
else ifeq ($(DEB_TARGET_ARCH),armel)
  ifneq (,$(filter $(distrelease),lucid maverick natty oneiric precise))
    debian_patches += gcj-arm-mode
  endif
endif

ifneq (,$(findstring mips, $(DEB_TARGET_ARCH)))
  debian_patches += pr65618
endif

ifeq ($(DEB_TARGET_ARCH),powerpcspe)
  debian_patches += powerpc_remove_many
  debian_patches += powerpc_nofprs
endif

#debian_patches += link-libs

# all patches below this line are applied for gcc-snapshot builds as well

ifeq ($(single_package),yes)
  debian_patches =
endif

debian_patches += \
	sys-auxv-header \
	libcilkrts-targets \

ifeq ($(with_ibm_branch),yes)
  debian_patches += ibm-branch
endif

ifeq ($(with_softfloat),yes)
  debian_patches += arm-multilib-soft-float
else ifeq ($(multilib),yes)
  ifneq (,$(filter $(distrelease),lucid maverick natty oneiric precise))
    debian_patches += arm-multilib-softfp$(if $(filter yes,$(DEB_CROSS)),-cross)
  else
    debian_patches += arm-multilib-soft$(if $(filter yes,$(DEB_CROSS)),-cross)
  endif
endif
debian_patches += arm-multilib-defaults

ifeq ($(DEB_CROSS),yes)
  debian_patches += cross-fixes
  debian_patches += cross-install-location
  ifeq ($(with_d),yes)
    debian_patches += gdc-cross-install-location
  endif
endif

ifeq ($(DEB_TARGET_ARCH_OS),hurd)
  debian_patches += hurd-changes
  debian_patches += \
		src_gcc_config_i386_gnu.h \
		src_libgo_configure.ac \
		src_libgo_runtime_go-caller.c \
		src_libgo_go_net_sendfile_gnu.go \
		src_libgo_go_net_sock_gnu.go \
		src_libgo_go_net_sockopt_gnu.go \
		src_libgo_go_net_sockoptip_gnu.go \
		src_libgo_go_syscall_libcall_gnu_386.go \
		src_libgo_go_syscall_libcall_gnu.go \
		src_libgo_go_syscall_libcall_posix-1.go \
		src_libgo_go_syscall_socket_gnu.go \
		src_libgo_go_syscall_wait.c \
		src_libgo_Makefile.am \
		src_libgo_Makefile.in \
		src_libgo_mksysinfo.sh \
		src_libgo_runtime_getncpu-gnu.c \
		src_libgo_runtime_netpoll.goc \
		src_libgo_go_os_os_test.go \
		src_libgo_go_syscall_syscall_gnu_test.go \
		src_libgo_testsuite_gotest \
		add-gnu-to-libgo-headers
endif

debian_patches += gcc-ice-dump
debian_patches += gcc-ice-apport
debian_patches += skip-bootstrap-multilib
debian_patches += libjava-fixed-symlinks
debian_patches += libffi-ro-eh_frame_sect
debian_patches += libffi-mips

# sigaction on sparc changed between glibc 2.19 and 2.21
ifeq (,$(filter 2.1%, $(shell dpkg-query -l libc-bin | awk '/^.i/ {print $$3}')))
  debian_patches += pr67899
endif

debian_patches += gcc-multiarch
ifeq ($(with_multiarch_lib),yes)
  ifneq ($(single_package),yes)
    debian_patches += libjava-multiarch
  endif
endif
debian_patches += libjava-nobiarch-check
debian_patches += config-ml
ifneq ($(single_package),yes)
  ifeq ($(with_multiarch_cxxheaders),yes)
    debian_patches += g++-multiarch-incdir
    debian_patches += canonical-cpppath
  endif
endif
ifneq (,$(filter $(build_type), build-cross cross-build-cross))
  debian_patches += cross-no-locale-include
  debian_patches += cross-biarch
  ifeq ($(with_libphobos),yes)
    debian_patches += gdc-cross-biarch
  endif
endif
debian_patches += gcc-multilib-multiarch

ifneq (,$(filter $(derivative),Ubuntu))
  ifeq (,$(filter $(distrelease),dapper hardy intrepid jaunty karmic lucid maverick))
    debian_patches += gcc-as-needed
    ifeq (,$(filter $(distrelease),dapper hardy intrepid jaunty karmic lucid maverick precise trusty utopic vivid wily xenial yakkety))
      debian_patches += gcc-as-needed-gold
    endif
  endif
else # Debian
    #debian_patches += gcc-as-needed
endif

debian_patches += libgomp-kfreebsd-testsuite
debian_patches += go-testsuite

# Ada patches needed for both the stable package and snapshot builds
debian_patches += ada-749574
debian_patches += ada-mips
ifeq ($(DEB_TARGET_ARCH),m68k)
  debian_patches += ada-m68k
  ifeq ($(with_ada),yes)
    debian_patches += m68k-revert-pr45144
  endif
endif

ifeq ($(DEB_TARGET_ARCH_OS), illumos)
	debian_patches += illumos-multiarch
	debian_patches += illumos-spec
	debian_patches += illumos-use_libgcj_bc
	debian_patches += illumos-pragma-align
	debian_patches += illumos-fclone-functions
	debian_patches += illumos-strict-calling-conventions
	debian_patches += illumos-boehm-gc
	debian_patches += illumos-libgcc-regs
	debian_patches += illumos-sysdep-unix.c
endif

# don't remove, this is regularly overwritten, see PR sanitizer/63958.
#debian_patches += libasan-sparc

series_stamp = $(stampdir)/02-series-stamp
series: $(series_stamp)
$(series_stamp):
	echo $(strip $(addsuffix .diff,$(debian_patches))) \
	  | sed -r 's/  +/ /g' | tr " " "\n" > $(series_file)
ifneq (,$(strip $(hardening_patches)))
  ifneq ($(trunk_build),yes)
	echo $(strip $(addsuffix .diff,$(hardening_patches))) \
	  | sed -r 's/  +/ /g' | tr " " "\n" >> $(series_file)
  endif
endif
	sed -r 's/(.)$$/\1 -p1/' -i $(series_file)
	touch $@

autoconf_files = $(filter-out src/libjava/classpath/m4/acinclude.m4, \
	  $(shell lsdiff --no-filename $(foreach patch,$(debian_patches),$(patchdir)/$(patch).diff) \
	    | sed -rn '/(configure\.ac|acinclude.m4)$$/s:[^/]+/src/:src/:p' | sort -u))
autoconf_dirs = $(sort $(dir $(autoconf_files)))

automake_files = $(addprefix ./, $(filter-out none, \
	  $(shell lsdiff --no-filename $(foreach patch,$(debian_patches),$(patchdir)/$(patch).diff) \
	    | sed -rn '/Makefile\.(am|in)$$/s:[^/]+/src/:src/:p' | sort -u)))

autoconf_version = 2.64
ifeq ($(trunk_build),yes)
  # The actual version depends on the build-dependencies set by
  # variable AUTO_BUILD_DEP in rules.conf.  Here, we assume the
  # correct version is installed.
  #autoconf_version =
endif

# FIXME: the auto* stuff is done every time for every subdir, which
# leads to build errors. Idea: record the auto* calls in the patch
# files (AUTO <dir> <auto-command with options>) and run them separately,
# maybe only once per directory).
$(patch_stamp): $(unpack_stamp) $(series_stamp)
	sync
	QUILT_PATCHES=$(patchdir) \
	  quilt --quiltrc /dev/null push -a || test $$? = 2

ifneq (,$(filter svn-updates, $(debian_patches)))
	awk '/^EOF/ {exit} p==1 {print} /EOF$$/ {p=1}' \
	  $(patchdir)/svn-updates.diff > src/LAST_UPDATED
endif

ifneq (,$(filter libgo-elf-relocations-sparc64, $(debian_patches)))
	uudecode $(patchdir)/../go-relocation-test-gcc620-sparc64.obj.uue
endif

	: # only needed when we have changes, and currently fails with autogen 5.18
	: #cd $(srcdir)/fixincludes && ./genfixes

	sync
	echo -n $(autoconf_dirs) | xargs -d ' ' -L 1 -P $(USE_CPUS) -I{} \
	  sh -c 'echo "Running autoconf$(autoconf_version) in {}..." ; \
	  cd $(CURDIR)/{} && \
	  AUTOM4TE=/usr/bin/autom4te$(autoconf_version) autoconf$(autoconf_version)'

	for i in $(debian_patches) $(hardening_patches); do \
	  echo -e "\n$$i:" >> pxxx; \
	  sed -n 's/^# *DP: */  /p' $(patchdir)/$$i.diff >> pxxx; \
	done
#	-$(srcdir)/move-if-change pxxx $@
	mv pxxx $@

unpatch:
ifneq (,$(filter libgo-elf-relocations-sparc64, $(debian_patches)))
	# uudecoded in $(patch_stamp) rule
	rm -f $(srcdir)/libgo/go/debug/elf/testdata/go-relocation-test-gcc620-sparc64.obj
endif

	QUILT_PATCHES=$(patchdir) \
	  quilt --quiltrc /dev/null pop -a -R || test $$? = 2
	rm -rf .pc

update-patches: $(series_stamp)
	export QUILT_PATCHES=$(patchdir); \
	export QUILT_REFRESH_ARGS="--no-timestamps --no-index -pab"; \
	export QUILT_DIFF_ARGS="--no-timestamps --no-index -pab"; \
	while quilt push; do quilt refresh; done

patch: $(patch_stamp)
.PHONY: patch series quilt autotools